MATX-6983 COM
来自ARM Wiki
文件:MATX-6983 COM1，COM3-6，COM7-10.jpg
MATX-6983 COM1，COM3-6，COM7-10
COM3-6：
| 信号名称 | Pin | Pin | 信号名称 |
|---|---|---|---|
| NC | 1 | 2 | NC |
| DB9_UART0_RXD | 3 | 4 | NC |
| DB9_UART0_TXD | 5 | 6 | NC |
| NC | 7 | 8 | NC |
| GND | 9 | 10 | COM_PIN10 |
| NC | 11 | 12 | NC |
| CPU0_UART1_RXD_L | 13 | 14 | NC |
| CPU0_UART1_TXD_R | 15 | 16 | NC |
| NC | 17 | 18 | NC |
| GND | 19 | 20 | COM_PIN10 |
| NC | 21 | 22 | NC |
| CTS_UART2_RXD_N | 23 | 24 | NC |
| RTS_UART2_TXD_N | 25 | 26 | NC |
| NC | 27 | 28 | NC |
| GND | 29 | 30 | COM_PIN10 |
| NC | 31 | 32 | NC |
| CPU0_UART3_RXD_L | 33 | 34 | NC |
| CPU0_UART3_TXD_R | 35 | 36 | NC |
| NC | 37 | 38 | NC |
| GND | 39 | 40 | COM_PIN10 |
COM7-10：
| 信号名称 | Pin | Pin | 信号名称 |
|---|---|---|---|
| HDCD#3 | 1 | 2 | HDSR#3 |
| HSIN3 | 3 | 4 | HRTS#3 |
| HSOUT3 | 5 | 6 | HCTS#3 |
| HDTR#3 | 7 | 8 | HRI#3 |
| GND | 9 | 10 | COM_PIN10 |
| HDCD#4 | 11 | 12 | HDSR#4 |
| HSIN4 | 13 | 14 | HRTS#4 |
| HSOUT4 | 15 | 16 | HCTS#4 |
| HDTR#4 | 17 | 18 | HRI#4 |
| GND | 19 | 20 | COM_PIN10 |
| HDCD#5 | 21 | 22 | HDSR#5 |
| HSIN5 | 23 | 24 | HRTS#5 |
| HSOUT5 | 25 | 26 | HCTS#5 |
| HDTR#5 | 27 | 28 | HRI#5 |
| GND | 29 | 30 | COM_PIN10 |
| HDCD#6 | 31 | 32 | HDSR#6 |
| HSIN6 | 33 | 34 | HRTS#6 |
| HSOUT6 | 35 | 36 | HCTS#6 |
| HDTR#6 | 37 | 38 | HRI#6 |
| GND | 39 | 40 | COM_PIN10 |
linux下各串口对应节点：
| 串口 | 对应节点 |
|---|---|
| COM1 | ttyS4 |
| COM2 | ttyS5 |
| COM3 | ttyS0 |
| COM4 | ttyS1 |
| COM5 | ttyS2 |
| COM6 | ttyS3 |
| COM7 | ttyS6 |
| COM8 | ttyS7 |
| COM9 | ttyS8 |
| COM10 | ttyS9 |
注：若发现COM1和COM2不通讯，可通过更改串口irq后再测试串口是否通讯，更改方法
setsetial /dev/ttyS4 irq 0 setsetial /dev/ttyS5 irq 0